Bluetooth problems since update 15.6.1

Greetings kdavella,

Ensuring your Bluetooth accessories remain connected to your iPhone X is important and we're glad you were able to test alternate devices and restart your iPhone to help isolate the issue. In addition to those steps, have you completed the remaining steps listed below? If not, complete these steps as they can be helpful in resolving this issue. These steps are also outlined in the following article. While the title of the article references not being able to connect to a Bluetooth accessory, they are still applicable for this issue.

"To get help pairing a Bluetooth accessory—like a wireless keyboard—to your iOS or iPadOS device, try these steps:

1. Make sure that your Bluetooth accessory and iOS or iPadOS device are close to each other.
2. Turn your Bluetooth accessory off and back on again.
3. Make sure that your Bluetooth accessory is on and fully charged or connected to power. If your accessory uses batteries, see if they need to be replaced.
4. If there's an app that you use with the Bluetooth accessory, go to Settings > Privacy > Bluetooth on your iOS or iPadOS device, and make sure that you've turned on Bluetooth for the app."

If you still can't pair or connect your Bluetooth accessory

1. "If you previously connected your Bluetooth accessory to your iOS or iPadOS device, unpair the accessory, put it back in discovery mode, then try to pair and connect it again.
2. If you can pair your accessory with some devices but not your iOS or iPadOS device, unpair the accessory from your other devices. Then try to pair with your iOS or iPadOS device again.
3. Check with the accessory manufacturer to make sure that your accessory supports your iOS or iPadOS device.
4. If you still have any of these issues, contact Apple Support: 

• You can’t turn on Bluetooth or the setting is grayed out.
• You can’t connect any Bluetooth accessories with your device.
• The accessory manufacturer confirmed that your accessory is working correctly."

If you can't connect a Bluetooth accessory to your iPhone, iPad, or iPod touch

If you continue to have issues after completing those steps, you'll want to rule out wireless interference as a potential cause. You can find those steps outlined in the following article.

Resolve Wi-Fi and Bluetooth issues caused by wireless interference

Let us know how that goes!